(single) Is the following description correct? The ADSL port can only allow further operations on the port after the port is unblocked.
(multiple) Which of the following are the methods and ideas for XDSL dialup abnormal fault location?
(multiple) command. What are the correct meanings of the three points in ./.profile?
(single) In the Solaris vi editor, how to discard the edited file and exit vi?
(multiple) command. What are the correct meanings of the three points in ./.profile?
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